Alciato's Book of
Emblems

Emblem 42

What stands firmest cannot be overthrown

Though father Ocean stir up all his waves and you, barbarous
Turk, drink the entire Danube, even so you will never penetrate
our shattered border so long as the emperor Charles gives
signs of war to foreign nations. Thus sacred oaks stand with steadfast
roots, even though winds shake the dry leaves violently.